Catechism of the Catholic Church §56 — excerpt
After the unity of the human race was shattered by sin God at once sought to save humanity part by part. the covenant with Noah after the flood gives expression to the principle of the divine economy toward the "nations", in other words, towards men…
This translation is under copyright, so only the cited words are quoted here. Follow the link for the full text. Translation: English translation of the Catechism of the Catholic Church, 2nd ed. (Libreria Editrice Vaticana), as posted at vatican.va.